When a dental implant fails, the titanium post loses its bond with your jawbone, becomes loose or painful, and eventually needs to be removed. About 5 to 10 percent of dental implants fail, either within the first few months or years after placement. The experience varies depending on when and why it happens, but the outcome typically involves removing the failed implant, letting the site heal, and in most cases, trying again with good odds of success.
How to Tell the Difference Between Normal Healing and Failure
Some pain, swelling, and even a low-grade fever are completely normal in the first few days after implant surgery. These symptoms should start improving by day three or four. If they get worse or persist past five days, something has likely gone wrong.
The key distinction is the direction of your symptoms. Normal healing follows a clear trajectory: each day feels a little better than the last. With implant failure, the pain either never improves or starts to worsen after several weeks. That pain might feel like a dull, constant ache or a sharp sensation when you bite down or touch the area. Some people notice increased sensitivity to hot or cold foods, or a feeling that their bite is “off.”
Other warning signs are harder to miss. A loose implant is one of the clearest red flags. A healthy implant is completely fixed in place and won’t shift when you push on it with your tongue or finger. Even slight movement means the bond between implant and bone has failed or never formed. Gums pulling away from the implant and exposing the metal underneath, pus or discharge at the site, chronic bad breath, or a persistent unpleasant taste in your mouth all signal a problem that needs immediate attention.
Early Failure vs. Late Failure
Implant failures fall into two broad categories based on timing, and each has different causes.
Early failure happens within the first three to four months, before the implant has fully fused with your jawbone. This fusion process, called osseointegration, is the biological foundation of the entire implant. When it doesn’t happen, the implant simply never becomes stable. The most common reasons include insufficient bone density to support the implant, infection at the surgical site, or conditions that slow your body’s healing. Autoimmune diseases, diabetes, and rheumatoid arthritis all interfere with the healing process and can prevent the implant from integrating properly.
Late failure occurs months or even years after the implant appeared to be working fine. The most common culprit is peri-implantitis, an infection of the tissue surrounding the implant that gradually destroys the supporting bone. It often develops slowly. You might first notice bleeding when you brush near the implant, then swelling, then a bad taste. Over time, enough bone erodes that the implant loses its anchor. Clinically, bone loss of 2 millimeters or more around an implant, combined with signs of inflammation, indicates peri-implantitis has set in. Mechanical failures can also occur late: the small screw connecting the visible crown to the implant post can loosen over time, and if that loosening goes unnoticed, the repeated shifting and stress can eventually fracture the screw or even the implant body itself.
Risk Factors That Raise the Odds of Failure
Smoking is one of the strongest predictors of implant failure. It restricts blood flow to the gums, which slows healing and weakens the bone-implant bond. A large Korean nationwide study found that current smokers had roughly 59 percent higher risk of implant failure compared to non-smokers. The risk climbed with heavier use: people smoking more than 10 cigarettes a day, or those with more than a decade of smoking history, faced significantly elevated failure rates. The crude incidence of failure was nearly double for current smokers (about 22 per 1,000 person-years) compared to non-smokers (about 12 per 1,000 person-years).
Untreated gum disease is another major risk factor, since the same bacteria that attack your natural teeth can colonize the tissue around an implant. Diabetes and other conditions that compromise immune function or slow wound healing also increase the likelihood of failure, though individual risk depends heavily on how well these conditions are managed.
What Removal Looks Like
If your implant has failed, it needs to come out. The process is usually less involved than the original placement surgery. Dentists and oral surgeons start with the least invasive approach: applying reverse torque to essentially unscrew the implant from the bone. When an implant has already lost its bond with the jawbone, it often comes out relatively easily. If the implant is still partially integrated or has fractured, the procedure becomes more complex and may require cutting a small ring of bone around it.
After removal, the site needs time to heal. Depending on how much bone was lost, you may need a bone graft to rebuild the area before a new implant can be placed. This adds months to the overall timeline, since the graft needs to mature and solidify before it can support another implant.
Trying Again After Failure
A failed implant doesn’t mean you’re out of options. A systematic review and meta-analysis of replacement implants found a one-year survival rate of 96.7 percent for implants placed at sites where a previous implant had failed. That’s reassuringly close to the success rates for first-time implants. The study also found no significant difference in outcomes between placing the new implant immediately versus waiting, which means your surgeon can choose the approach that best fits your specific situation and the condition of your bone.
The key to a successful second attempt is identifying and addressing whatever caused the first failure. If peri-implantitis was the problem, getting gum disease under control before the new implant is essential. If smoking contributed, quitting or at least reducing use significantly improves the odds. If insufficient bone was the issue, grafting before the second placement gives the new implant a stronger foundation. Most people who experience implant failure are good candidates for a second try once the underlying problem is resolved.